1. Basic data used in this compilation are not, as regards P-40, and P-47
aircraft, sufficiently detailed to permit absolutely accurate analysis in the following
respects:

a. Abort figures include all early returns, including aircraft which
took off with the formation in the capacity of "spares" and aircraft
which broke off from the formation for the purpose of acting as escort to
aborting aircraft. Therefore, the sortie and abort figures and the rates
derived therefrom are inflated.

b. "Operational" and "Other" losses include aircraft
accidents at base or other friendly territory on a combat mission. Many of
these aircraft were not heavily damaged and were flying again after the
necessary repairs were made. This condition also exists as regards P-51
aircraft and all loss figures and rates are inflated in this respect.

2. A high percentage of the "Unknown" losses occurred on missions
during which an engagement with enemy aircraft took place. In attempting to
arrive at a probable victory/loss ratio, these unknowns are added to the
losses known to have been caused by enemy aircraft and probable
victories are combined with the confirmed victories.

3. All sorties are shown as actual type flown, not as sorties intended
to be flown, i.e. a strafing mission which was unable to reach its target
because of weather, and which in fact "swept" the target area at
altitude, is tabulated as a "Fighter Sweep".

4. "Flak" includes all enemy fire emanating from the
ground, of whatever caliber.

5. Enemy aircraft destroyed on the ground were not credited as
"victories" in the 325thFtr.Grp.

1-Reproduction of original 325th Fighter Group
Operational SummarySource: Hq., 325th Fighter Group
Office of the Intelligence Officer
Periodic Intelligence Reports